Number of (n+1) X 4 0..3 arrays with the number of clockwise edge increases in 2 X 2 subblocks nondecreasing, and counterclockwise edge increases nonincreasing, rightwards and downwards.
A206104
Number of (n+1) X 4 0..3 arrays with the number of clockwise edge increases in 2 X 2 subblocks nondecreasing, and counterclockwise edge increases nonincreasing, rightwards and downwards.
Terms
- a(0) =15564a(1) =359932a(2) =8114696a(3) =210981300a(4) =5942161220a(5) =173412646632
External references
- oeis: A206104